Results 1 to 10 of about 735 (173)

Expansions for eigenfunction and eigenvalues of large-$n$ Toeplitz matrices [PDF]

open access: yesPapers in Physics, 2010
This paper constructs methods for finding convergent expansions for eigenvectors and eigenvalues of large-$n$ Toeplitz matrices based on a situation in which the analogous infinite-$n$ matrix would be singular. It builds upon work done by Dai, Geary, and
Leo P. Kadanoff
doaj   +1 more source

Temporal derivation operator applied on the historic and school case of slab waveguides families eigenvalue equations: another method for computation of variational expressions [PDF]

open access: yesThe European Physical Journal Applied Physics, 2019
Starting from the well-known and historic eigenvalue equations describing the behavior of 3-layer and 4-layer slab waveguides, this paper presents another specific analytical framework providing time-laws of evolution of the effective propagation constant associated to such structures, in case of temporal variation of its various geometrical features ...
Garnier, Lucas   +4 more
openaire   +2 more sources

A new method for obtaining eigenvalues of variational inequalities: operators with multiple eigenvalues [PDF]

open access: yesCzechoslovak Mathematical Journal, 1982
Let K be a closed convex cone in a Hilbert space H, \(A: H\to H\) a linear symmetric completely continuous operator. The paper deals with an eigenvalue problem for the variational inequality (I) \(u\in K\), (II) (\(\lambda\) u-Au, v-u)\(\geq 0\) for all \(v\in K\). It is proved that under certain assumptions there exists a connected and unbounded in \(\
openaire   +1 more source

Additivity and Chain Rules for Quantum Entropies via Multi-index Schatten Norms. [PDF]

open access: yesCommun Math Phys
Fawzi O   +3 more
europepmc   +1 more source

RRAEDy: adaptive latent linearization of nonlinear dynamical systems. [PDF]

open access: yesSci Rep
Mounayer J   +4 more
europepmc   +1 more source

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